How to level subfloor for engineered flooring?


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Old 11-23-21, 12:17 PM
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How to level subfloor for engineered flooring?

I want to put either engineered wood or vinyl on my floor. However, I found that my subfloor is not level. The lowest part can be around 1/2" to 3/4". On YouTube there are lots of video showing how to use self-leveling concrete. However, are there other alternatives to this? Self-leveling concrete seems messy and a lot of prep work to secure so that it doesn't leak to the basement and other rooms. Any suggestion is much appreciated.
 

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11-23-21, 12:52 PM
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Floors do not necessarily need to be level, they need to be FLAT. In other words, no humps, no dips that exceed the flooring mfg's specifications. (For example, no more than +/- 1/8" in 6 ft.... or +/- 3/16" in 10 ft) you will find specific info regarding the subfloor along with your flooring installation instructions.

So you need a long straightedge to check the floor, but you do not necessarily look at the bubble on a level. You are looking more for dips and humps that cause the level to rock.

Not sure if that changes anything but wanted to clear that up first.
 
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Old 11-23-21, 12:52 PM
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Floors do not necessarily need to be level, they need to be FLAT. In other words, no humps, no dips that exceed the flooring mfg's specifications. (For example, no more than +/- 1/8" in 6 ft.... or +/- 3/16" in 10 ft) you will find specific info regarding the subfloor along with your flooring installation instructions.

So you need a long straightedge to check the floor, but you do not necessarily look at the bubble on a level. You are looking more for dips and humps that cause the level to rock.

Not sure if that changes anything but wanted to clear that up first.
 
Charlie2, mitchelt voted this post useful.
 

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